16112220 has 24 divisors (see below), whose sum is σ = 45114384. Its totient is φ = 4296576.

The previous prime is 16112207. The next prime is 16112231. The reversal of 16112220 is 2221161.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 16112220.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 134209 + ... + 134328.

It is an arithmetic number, because the mean of its divisors is an integer number (1879766).

Almost surely, 2^16112220 is an apocalyptic number.

16112220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16112220 is an abundant number, since it is smaller than the sum of its proper divisors (29002164).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

16112220 is a wasteful number, since it uses less digits than its factorization.

16112220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 268549 (or 268547 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 15.

The square root of 16112220 is about 4014.0029895355. The cubic root of 16112220 is about 252.5719560960.

Adding to 16112220 its reverse (2221161), we get a palindrome (18333381).

The spelling of 16112220 in words is "sixteen million, one hundred twelve thousand, two hundred twenty".